As you stated earlier, not having a TM30 for 12 years, and now say not planning to do one. I have been in Thailand for almost 20 years and have NEVER filed a TM30. I have been in and out of the country on many occasions, and stayed in numerous hotels around the country, but never been asked about a TM30. So why would I bother now? I go to immigration to do my visa renewal, but not for 90 days, either my wife or son does that. If the time should come when it is necessary, then so be it.